PWM radiator fan controller

[andrewb70]

On the idea of a standalone controller, does anybody have a line on the voltage vs pressure map of the GM AC refrigerant sensor? (AC Delco pn 15-51258)

I've done some googling without much luck...

John,

If you know the max pressure reading of the sensor, then you can plot the output curve. From what I have seen (at least with the 5v oil pressure sensors) the output will be linear from .5 to 4.5 volts (.5 volts =0, 4.5 volts = max). You can verify this with your air compressor to a certain point.



Andrew